Looking at the stats and various other assessments, there seems to be a line of argument that centre is KO's best position (mainly due to deficiencies as a forward), but he isn't a great centre. To be fair his attributes have been mentioned and he does a lot of good things. I think he could be a vital link in a CBS coached team, especially off the bench. Due to him not being a carbon copy of a 'typical' centre or like the other players we have that are likely to play centre, he changes things up when he comes on and creates a different threat.
He also has that ability to dislocate an all stars shoulder or elbow, which could be valuable.
There is little doubt that playing time will be shared around with this squad and I think KO will get enough to use his strengths but won't be over used so his weaknesses become a massive problem.
I agree with this. If all indications are that Olynyk is more effective as a center than a power forward, play him at center. It doesn't absolve the team of the fact that we lack a starting-caliber center, and I don't believe that we should pass on including Olynyk in a trade for one should the opportunity arise or refuse to curtail his minutes if one appears on the roster along side him.
Here's what I'm trying to say here...
I'm not sure that Kelly is an effective center.
I'm not sure that Kelly is most effective at center.
When you're looking at team-based stats, context can get lost. Was Kelly most effective in lineups when he was playing center? Who was playing power forward in those line-ups? Alternatively, who was playing center next to Kelly when he was playing power forward? As far as I can tell, this team was pretty devoid of true centers last year. Zeller was the only player that could realistically be seen as a real center and Zeller at best is an overachieving 2nd/3rd string center. If Kelly was playing power forward... who was he playing power forward next to? If it was ineffective, you have to consider if perhaps it just wasn't a good mix of players next to him.
If Kelly + Zeller was less effective than Bass + Kelly or Sully + Kelly, couldn't that speak more to the fact that Sullinger and Bass are better at basketball than Zeller? This team didn't have a lot of talent last year, but one position they had some quality at was power forward. Sullinger, Bass and Olynyk are about as close to "starter-caliber" talent that this team had. Maximizing the amount of basketball talent on the court at once necessitated having one of those guys play out of position at center. Kelly, being 7 foot and reasonably resembling what we consider proper "center" size in this league was the one to get the nod.
This reminds me of a small-level version of Jeff Green + Kevin Durant. Those early Thunder/Sonic teams lacked overall talent. It was clear that Jeff Green was one of their 3 best players. Obviously, Durant was the best SF they had. If they were going to play Green, it was going to be out of position... Green got stuck playing PF. Now, if you were to look at some 82games breakdowns of those early Sonic/Thunder teams, you might come to the conclusion that Jeff Green was far more "effective" in lineups where he played PF vs lineups when he played SF. Context: Durant (SF) + Green (PF) was probably more effective than Green (SF) + Chris Wilcox (PF) ... Does that mean that Green was more "effective" at PF than SF? Or does that just reflect the fact that Kevin Durant was so significantly better than Chris Wilcox that it outweighed the fact that Jeff Green was playing out of position?
Green was a SF playing out of position at PF by necessity. Kelly is a PF who played out of position at C by necessity. Kelly isn't a center. And let's not gloss over the fact that he was such a poor solution at center that he lost the starting role to Tyler Zeller. I still believe Kelly has game, though. I really like Kelly for his offensive ability. I'd be rather curious to see how he played at PF next to an appropriately talented center whose abilities compliment Kelly's strengths (offense) and weaknesses (interior defense). As others have mentioned, it will be interesting to see him in a line-up with Amir Johnson.
TL;DR: At gunpoint, I'd guesstimate the rankings of our bigs last year as Bass > Sully > Oly > Zeller. It shouldn't be stunning that lineups featuring the two worst bigs was the least effective.